B1400 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B1400 – Driver Power Window One Touch Window Relay Circuit Short To Battery

 

B1400 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B1400 Possible Causes

 

Faulty Driver Power Window One Touch Window Relay,Driver Power Window One Touch Window Relay harness is open or shorted,Driver Power Window One Touch Window Relay circuit poor electrical connection,Faulty Body Control Module (BCM)

 

B1400 Description

 

The Body Control Module (BCM) monitors the Driver Power Window One Touch Window Relay. The BCM sets the OBDII code when the Driver Power Window One Touch Window Relay is not to factory specifications.